US4803258A - Thermoplastic aromatic polyether-pyridine and process for preparing same - Google Patents

Thermoplastic aromatic polyether-pyridine and process for preparing same Download PDF

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US4803258A
US4803258A US07/076,873 US7687387A US4803258A US 4803258 A US4803258 A US 4803258A US 7687387 A US7687387 A US 7687387A US 4803258 A US4803258 A US 4803258A
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general formula
group
pyridine
bis
pyridyloxy
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Keizaburo Yamaguchi
Hideaki Oikawa
Kenichi Sugimoto
Masahiro Ohta
Akihiro Yamaguchi
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Mitsui Chemicals Inc
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Mitsui Toatsu Chemicals Inc
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Priority claimed from JP26285686A external-priority patent/JPH0713142B2/ja
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
    • C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
    • C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
    • C08G65/4006—(I) or (II) containing elements other than carbon, oxygen, hydrogen or halogen as leaving group (X)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/63—One oxygen atom
    • C07D213/64—One oxygen atom attached in position 2 or 6
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
    • C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
    • C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
    • C08G65/4031—(I) or (II) containing nitrogen
    • C08G65/4037—(I) or (II) containing nitrogen in ring structure, e.g. pyridine group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/20—Polysulfones
    • C08G75/23—Polyethersulfones

Definitions

  • This invention relates to thermoplastic aromatic polyether-pyridines and a process for preparing such polymers.
  • thermoplastic aromatic polyether-pyridines (hereinafter referred to as PEPs) are thermoplastic resins characterized in that each of their repeating structural units contains one or more pyridine rings and two or more oxygen linkages.
  • PEPs have wide applications including molding materials, films, insulating materials for wire coating use, and the like. Moreover, it is expected that electrical conductivity can be imparted thereto by doping the nitrogen atom of the pyridine rings with a metal ion. Furthermore, the PEPs of the present invention are also very useful as functional polymeric materials, because hollow fibers or thin membranes formed of these PEPs have the ability to retain or separate certain cations and are useful as polymeric catalysts for polymer reactions.
  • the present inventors have for the first time developed such unique polyether resins and a process for preparing them.
  • common aromatic polyether resins have been prepared by condensing an aromatic bisphenol with an aromatic dihalogeno compound.
  • a polyether-ketone resin has been prepared from hydroquinone and 4,4'-difluorobenzophenone (Japanese Patent Laid-Open No. 90296/'79) and a polyether-sulfone resin had been prepared from 4,4'-dihydroxydiphenyl sulfone and 4,4'-dichlorodiphenyl sulfone (Japanese Patent Laid-Open No. 27500/'77).
  • aromatic polyether resins are prepared only when an aromatic dihalide compound whose two halogen atoms are activated by an electron attractive group such as a carbonyl or sulfonyl group located at the para position (e.g., 4,4'-difluorobenzophenone or 4,4'dichlorodiphenyl sulfone) is used as a starting material.
  • an aromatic dihalide compound whose two halogen atoms are activated by an electron attractive group such as a carbonyl or sulfonyl group located at the para position (e.g., 4,4'-difluorobenzophenone or 4,4'dichlorodiphenyl sulfone) is used as a starting material.
  • condensation polymers derived from para-substituted monomers and hence having a linear molecular configuration such as the above-described polyether resins, are so rigid that their fluidity is insufficient for molding purposes.
  • resins having a nonlinear molecular configuration and, therefore, ones derived from meta-substituted monomers are so rigid that their fluidity is insufficient for molding purposes.
  • heat-resistant resins Furthermore, with regard to the performance aspect of heat-resistant resins, it is desirable that they have excellent functional properties other than heat resistance. Thus, there is a need for heat-resistant resins which exhibit excellent moldability and other functional properties and/or can be provided with certain electrical properties such as electrical insulating or conductive properties.
  • a 2,6-dihalogenopyridine e.g., 2,6-dichloropyridine
  • 2,6-dichloropyridine a 2,6-dihalogenopyridine
  • a bis(6-chloro-2-pyridyloxy) compound can be prepared by reacting only one chlorine atom of 2,6-dichloropyridine with a dihydroxy compound.
  • Such a bis(6-chloro-2-pyridyloxy) copound can be reacted with a dihydroxy compound to prepare a polyether-pyridine resin.
  • an alternating condensation polyether resin can also be prepared by condensing a bis(6-chloro-2-pyridyloxy) compound with a dihydroxy compound which is different from that used in the preparation of the bis(6-chloro-2-pyridyloxy) compound.
  • the resin so prepared has additional unique properties and may be expected to find new uses.
  • the present invention relates to novel thermoplastic aromatic polyether-pyridines obtained by condensing a 2,6-dihalogenopyridine, which is an active meta-substituted aromatic dihalide compound, or a bis(6-chloro-2-pyridyloxy) compound with a dihydroxy compound, as well as a process for preparing such polymers.
  • thermoplastic aromatic polyether-pyridine composed of repeating structural units of the general formula ##STR1## where X is a divalent radical selected from the group consisting of ##STR2## one or two types of such divalent radicals are present in the molecule, and n represents a degree of polymerization and is a whole number of 10 or greater.
  • the present invention also provides a process for preparing such a thermoplastic aromatic polyetherpyridine which comprises (A) (a) mixing a 2,6-dihalogenopyridine of the general formula ##STR3## where Y 1 and Y 2 are chlorine, bromine or fluorine atoms and may be the same or different, with one or two or more dihydroxy compounds of the general formula
  • X is as defined for the general formula (1), in a substantially equimolar ratio, or (b) mixing a bis(6-chloro- 2-pyridyloxy) compound of the general formula ##STR4## where X is as defined for the general formula (1), which has been obtained by reacting 2,6-dichloropyridine with a dihydroxy compound of the general formula (3) in the presence of a base in an aprotic polar solvent, with a dihydroxy compound of the general formula (3) in a substantially equimolar ratio, and (B) effecting polycondensation of these reactants under substantially water-free conditions in the presence of an alkali metal carbonate and/or bicarbonate or an alkali metal hydroxide.
  • novel thermoplastic aromatic polyetherpyridines of the present invention have a degree of polymerization (i.e., a whole number represented by n) of 10 or greater and preferably 50 to 3,000.
  • the PEPs of the present invention have a folded molecular configuration. More specifically, in the practice of the present invention, a 2,6-dihalogenopyridine compound is used as a starting material. This compound has a pair of halogen atoms located at the meta positions, so that the resulting resin has a folded molecular configuration instead of a linear one. Moreover, any desired folded molecular configurations can be obtained by using it in combination with various diphenols.
  • the repeating structural units have the meta-para structure when hydroquinone or 4,4'-bisphenol is used as the diphenol, and they have the meta-meta structure when resorcinol or 2,7-dihydroxynaphthalene is used as the diphenol.
  • the PEPs of the present invention are novel resins composed of repeating structural units having a nitrogen atom in the aromatic nucleus and are characterized by a variety of highly functional properties.
  • the present inventors have succeeded in preparing such novel resins with attention focused on the reactivity of the 2,6-dihalogenopyridine compound used as a starting material.
  • the resins so prepared are characterized by having one or more pyridine rings in each repeating structural unit and two or more oxygen linkages per pyridine ring.
  • their properties can be diversely modified by the combined use of various diphenols.
  • the resulting resin is reduced in glass transition temperature and toughness, but improved in flexibility and adhesive properties, as compared with the resin obtained by using the para-dihydroxy compound alone.
  • the 2,6-dihalogenopyridine of the general formula (2) which is used as one of the two starting materials, is selected from the group consisting of 2,6-dichloropyridine, 2-bromo-6-chloropyridine, 2,6-dibromopyridine, 2 chloro-6-fluoropyridine, 2-bromo-6-fluoropyridine and 2,6-difluoropyridine.
  • 2,6-dichloropyridine is preferred for industrial purposes.
  • the bis(6-chloro-2-pyridyloxy) compound of the general formula (4) which is also used as one of the two starting materials, is obtained by condensing 2,6-dichloropyridine with a diphenol.
  • bis(6-chloro-2-pyridyloxy) compound examples include 2,2-bis[4-(6-chloro-2-pyridyloxy)]propane, 4,4-bis(6-chloro-2-pyridyloxy)diphenyl sulfide, 1,4-bis(6-chloro-2-pyridyloxy)benzene, 1,3-bis(6-chloro-2-pyridyloxy)benezene, 1,6-bis(6-chloro-2-pyridyloxy)naphthalene, 1,5-bis(6-chloro-2-pyridyloxy)naphthalene, 2,6-bis(6-chloro-2-pyridyloxy)naphthalene, 2,7-bis(6-chloro-2-pyridyloxy)naphthalene, 1,7-bis(6-chloro-2-pyridyloxy)naphthalene, 4,4'-bis(6-chlor
  • 2,6-dihalogenopyridines can be prepared by halogenating pyridine according to conventional procedure [as described in Dai-Yuki-Kgaku (Asakura Shoten), Vol. 16, p. 20].
  • the mono- and difluoropyridines can also be prepared by reacting other halogenopyridines with potassium fluoride or the like to exchange fluorine for the other halogen atom(s).
  • bis(6-chloro-2-pyridyloxy) compounds can be prepared according to the following procedure which has been developed by the present inventors.
  • X is a divalent radical selected from the group consisting of ##STR5## in the presence of a base in an aprotic polar solvent.
  • the dihydroxy compound used in this procedure can be any of the dihydroxy compounds useful in the preparation of the resins of the present invention as will be described later.
  • 2,6-dichloropyridine and the dihydroxy compound are used in such a proportion that 2 moles or more, preferably 2 to 3 moles, of 2,6-dichloropyridine is present for each mole of the dihydroxy compound.
  • the base is selected from the group consisting of hydroxides, carbonates, bicarbonates and alkoxides of alkali metals.
  • useful bases include potassium hydroxide, sodium hydroxide, lithium hydroxide, potassium carbonate, sodium carbonate, lithium carbonate, potassium bicarbonate, sodium bicarbonate, lithium bicarbonate, potassium ethoxide, potassium isopropoxide, sodium methoxide, lithium ethoxide and the like.
  • the hydroxide and carbonate of potassium or sodium are preferred.
  • bases may be used alone or in admixture of two or more.
  • the base is used in an amount of one or more equivalents, preferably 1 to 1.5 equivalents, per equivalent of the hydroxyl groups of the dihydroxy compound used as a starting material.
  • the reaction is carried out in a solvent.
  • An aprotic polar solvent is used for this purpose.
  • useful aprotic polar solvents include N-methylformamide, N,N-dimethylformamide, N-methylpyrrolidone, N,N-dimethylacetamide, 1,3-dimethyl-2-imidazolidinone, dimethyl sulfoxide, hexamethylphosphoric triamide, dimethyl sulfone, sulfolane and the like.
  • the amount of solvent used it is usually used in an amount of 1 to 10 times the weight of the starting materials.
  • a quaternary ammonium salt, a quaternary phosphonium salt, a macrocyclic polyether such as Crown Ether, a nitrogen-containing macrocyclic polyether such as Criptate, a nitrogen-containing chain polyether such as tris(3,6-dioxoheptyl)amine, a polyethylene glycol dialkyl ether or the like may be added to the reaction system for the purpose of allowing the reaction to proceed more smoothly.
  • the reaction is carried out at a temperature of 80° to 160° C. and preferably 100° to 140° C. After completion of the reaction, the reaction mixture is cooled and the crystals which separated out during the reaction or have separated out as a result of cooling can be obtained by filtration.
  • the other starting material used in the process of the present is a dihydroxy compound of the general formula (3).
  • useful dihydroxy compounds include hydroquinone, resorcinol, 4,4'-dihydroxybiphenyl, 4,4'-dihydroxydiphenyl ether, 4,4'-thiodiphenol, 4,4'-dihydroxydiphenyl sulfoxide, 4,4'-dihydroxydiphenyl sulfone, 4,4'-dihydroxydiphenylmethane, 4,4'-dihydroxybenzophenone, 2,2'-bis(4-hydroxyphenyl)propane, 2,7-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,5 dihydroxynaphthalene, 2,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene and the like.
  • one or two or more dihydroxy compounds as defined above may be used where the other starting monomer is a 2,6-dihalogenopyridine.
  • the dihydroxy compound used for this purpose can be the same as that used in the preparation of the bis(6-chloro 2-pyridyloxy) compound.
  • a different dihydroxy compound is usually used to produce an alternating condensation polymer having unique properties.
  • the above-defined 2,6-dihalogenopyridine or bis(6-chloro-2-pyridyloxy) compound and the above-defined dihydroxy compound should be reacted in a substantially equimolar ratio.
  • substantially equimolar ratio means that the amount of the aforesaid dihalogenopyridine or dihydroxy compound may exceed its stoichiometric amount by about 10% or less. The use of a slight excess of one reactant serves to retard the reaction and thereby control the molecular weight of the resulting polycondensation product.
  • the PEPs of the present invention can have varying degrees of crystallinity depending on the type of the dihydroxy compound used.
  • PEPs obtained by using hydroquinone, 4,4'-dihydroxybiphenyl or a dihydroxynaphthalene as a starting material are highly crystalline polymers and are hardly soluble or insouble in most solvents.
  • a suitable combination of dihydroxy compounds can be used to effect co-condensation and thereby change the degree of crystallinity according to the intended purpose.
  • these dihydroxy compounds may be used in a molar ratio ranging from 5:95 to 95:5.
  • an alkali metal carbonate, bicarbonate or hydroxide is used as the base.
  • alkali metal hydroxides such as sodium hydroxide and potassium hydroxide
  • the water present in the reaction system must be removed completely.
  • the preferred bases for use in the present invention are alkali metal carbonates and bicarbonates.
  • alkali metal carbonates and bicarbonates include potassium carbonate, sodium carbonate, cesium carbonate, rubidium carbonate, potassium bicarbonate, sodium bicarbonate and the like.
  • potassium carbonate and sodium carbonate are preferably used for industrial purposes. It is to be understood that these two carbonates may be used in admixture and they may also be used in combination with other carbonates or bicarbonates.
  • the total amount of these alkali metal salts should preferably be such that not less than two gram atoms of alkali metal is present for each mole of the dihydroxy compound and, in other words, not less than one alkali metal atom is present for each hydroxyl group. If the amount is smaller, the degree of condensation will be reduced. On the other hand, a large excess of alkali metal carbonate and/or bicarbonate should not be used so as to avoid undesirable side reactions. It is most preferable to use them in such an amount as to provide 1 to 1.2 alkali metal atoms for each hydroxyl group.
  • the process of the present invention can be carried out in the manner described in Japanese Patent Publication No. 7959/'78. That is, the starting materials can be reacted in a stirred and mixed state without using any solvent. However, it is preferable for industrial purposes to carry out the reaction in the presence of a solvent.
  • aprotic polar solvents are preferably used.
  • solvents include 1,3-dimethyl-2-imidazolidinone, hexamethylphosphoramide, formamide, N-methylformamide, N,N-dimethylformamide, N,N-diethylformamide, acetamide, N-methylacetamide, N,N-dimethylacetamide, N,N,N',N'-tetramethylurea, 2-pyrrolidone, N-methylpyrrolidone, dimethyl sulfoxide, dimethyl sulfone, sulfolane and the like.
  • 1,3-dimethyl-2-imidazolidinone, N-methylpyrrolidone, dimethyl sulfone and sulfolane are especially preferred.
  • solvents are usually used in an amount of about 0.5 to 10 times the weight of the starting materials.
  • the reaction temperature can range from 90° to 300° C. and preferably 120° to 250° C. It is preferable to carry out the reaction by heating the reaction mixture stepwise.
  • a macrocyclic polyether such as Crown Ether, a nitrogen-containing macrycyclic polyether such as Criptate, a nitrogen-containing chain polyether such as tris(3,6-dioxoheptyl)amine or a polyethylene glycol dialkyl ether may be used as an interphasic moving catalyst.
  • the polycondensation reaction using the above-defined starting materials and other agents is usually carried out in the following manner: Predetermined amounts of a 2,6-dihalogenopyridine or a bis(6-chloro-2-pyridyloxy) compound, a dihydroxy compound, a base and a solvent are charged into a reactor. Moreover, a suitable solvent such as benzene, toluene or chlorobenzene is added thereto for the purpose of removing any water from the reaction system. This solvent serves as an azeotropic agent for continuously and qucikly removing the water present in the reaction system and the water formed therein during the reaction, and has the effect of producing a polymer having a high degree of condensation.
  • a suitable solvent such as benzene, toluene or chlorobenzene
  • the reaction is carried out by heating the reaction mixture stepwise while passing therethrough an inert gas such as nitrogen, argon, helium, carbon dioxide or the like.
  • an inert gas such as nitrogen, argon, helium, carbon dioxide or the like.
  • a suitable solvent is distilled for the purpose of water removal.
  • the temperature is raised to about 200°-250° C. before completion of the reaction.
  • the reaction time ranges approximately from 4 to 20 hours.
  • the reaction mixture may be treated according to any conventional procedure for the recovery of polymers. Specifically, the reaction mixture may be poured into methanol, water or the like to precipitate the polymer. Alternatively, where the polymer is soluble in halogenated hydrocarbon solvents, it is also possible to dilute the reaction mixture with such a solvent, remove the inorganic salt and the reaction solvent therefrom by extraction with water, separate the organic phase, and precipitate the polymer by pouring it into methanol or the like.
  • the PEPs of the present invention are novel thermoplastic aromatic polyether resins composed of repeating structural units each containing one or more pyridine rings. These resins have excellent heat resistance and moldability, can be produced at low cost, and may be expected to exhibit new combinations of properties attributable to the nitrogen atom of the pyridine rings. Accordingly, they are useful in a wide variety of applications. The provision of such novel and useful resins is believed to contribute to the development of the art and hence have great significance.
  • t is the flowing time (in seconds) at 35° C. of a solution of 0.5 g of an aromatic polyether-pyridine in 100 ml of a solvent mixture composed of phenol and tetrachloroethane (in a weight ratio of 6:4)
  • t O is the flowing time (in seconds) at 35° C. of the aforesaid solvent mixture alone
  • C is the concentration (in g/dl) of the solution to be tested.
  • Tg Glass transition temperature
  • Tm melting point
  • Td 5 5% thermal weight loss temperature
  • Flow characteristics were measured with a flow tester (Model CFT-500; manufactured by Shimazu Seisakusho). Measurements were made at a given temperature and under a given load, using a die length of 10 mm, a die diameter of 1 mm, a preheating time of 5 minutes, and a measuring range of depression of 3-7 mm.
  • Example 2 The procedure of Example 1 was repeated except that 11.9 g (0.05 mole) of 2,6-dibromopyridine, 10.91 g (0.05 mole) of 4,4'-thiodiphenol, 7.6 g (0.055 mole) of anhydrous potassium carbonate and 20 ml of sulfolane were used in the reaction mixture. Thus, there was obtained 13.8 g of a white polymer.
  • Reaction was carried out in the same manner as described in Example 1, except that 7.5 g (0.0503 mole) of 2,6-dichloropyridine, 9.31 g (0.05 mole) of 4,4'-dihydroxydiphenyl, 7.6 g (0.055 mole) of anhydrous potassium carbonate and 20 ml of 1,3-dimethyl-2-imidazolidinone were used in the reaction mixture.
  • crystals ha precipitated from the reaction mixture.
  • the reaction mixture was directly poured into 400 ml of methanol, followed by stirring in a high-speed mixer for 10 minutes.
  • the crystals were separated by filtration and resuspended in 400 ml of a 70% aqueous solution of methanol, followed by stirring. Thereafter, the crystals were separated by filtration, washed thoroughly with water and then dried to obtain 13.0 g of a polymer in the form of white powder.
  • Example 3 The procedure of Example 3 was repeated except that 5.8 g (0.05 mole) of 2,6-difluoropyridine, 5.5 g (0.05 mole) of hydroquinone, 5.51 g (0.052 mole) of anhydrous potassium carbonate and 20 ml of 1,3-dimethyl-2-imidazolidinone were used in the reaction mixture. Thus, there was obtained 9.0 g of a white polymer.
  • Example 3 The procedure of Example 3 was repeated except that 7.5 g (0.0503 mole) of 2,6-dichloropyridine, 5.5 g (0.05 mole) of resorcinol, 7.6 g (0.055 mole) of anhydrous potassium carbonate and 20 g of dimethyl sulfone were used in the reaction mixture. Thus, there was obtained 8.6 g of a white polymer.
  • Example 3 The procedure of Example 3 was repeated except that 8.01 g (0.05 mole) of 2,7-dihydroxynaphthalene was used in place of the 4,4'-dihydroxydiphenyl. Thus, there was obtained 11.3 g of a white polymer.
  • Example 3 The procedure of Example 3 was repeated except that 7.5 g (0.0503 mole) of 2,6-dichloropyridine, 5.71 g (0.025 mole) of 2,2'-bis(4-hydroxyphenyl)propane, 4.65 g (0.025 mole) of 4,4'-dihydroxydiphenyl, 7.6 g (0.055 mole) of anhydrous potassium carbonate and 20 ml of 1,3-dimethyl-2-imidazolidinone were used in the reaction mixture. Thus, there was obtained 14 g of a white copolymer.
  • the reaction was continued for 3 hours with the removal and distillation of water by occational addition of toluene. Thereafter, the reaction was continued at 200° C. for 3 hours and then at 220° C. for 3 hours.
  • the resulting viscous resin solution was added dropwise to 800 ml of methanol stirred vigorously in a high-speed mixer. After completion of the addition, the stirring was continued for an additional 10 minutes and the resulting white precipitate was separated by filtration. This white precipitate was resuspended in 300 ml of a 70% aqueous solution of methanol, followed by stirring. Thereafter, the white precipitate was separated by filtration, washed with water and then dried to obtain a polymer.

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US07/076,873 1986-08-01 1987-07-23 Thermoplastic aromatic polyether-pyridine and process for preparing same Expired - Lifetime US4803258A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP61-180180 1986-08-01
JP61180180A JP2540521B2 (ja) 1986-08-01 1986-08-01 熱可塑性芳香族ポリエ−テルピリジンおよびその製造方法
JP61-262856 1986-11-06
JP26285686A JPH0713142B2 (ja) 1986-11-06 1986-11-06 熱可塑性芳香族ポリエ−テルピリジンおよびその製造方法

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WO2012084940A1 (en) 2010-12-23 2012-06-28 Solvay Sa Use of oligomers as compatibilizers for inorganic particles and compositions containing compatibilizer, inorganic particles and polymer
US20130189533A1 (en) * 2010-10-14 2013-07-25 Nissan Chemical Industries, Ltd. Resist underlayer film forming composition for lithography containing polyether structure-containing resin

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US7754843B2 (en) 2007-04-05 2010-07-13 Advent Technologies Proton conducting aromatic polyether type copolymers bearing main and side chain pyridine groups for use in proton exchange membrane fuel cells
GR20110100058A (el) * 2011-02-07 2012-09-20 ADVENT S.A. (κατά ποσοστό 60%), Διασυνδεδεμενοι ή μη αρωματικοι συμπολυμερικοι ηλεκτρολυτες αγωγης πρωτονιων για χρηση σε κελια καυσιμου πολυμερικης μεμβρανης

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DE2826685A1 (de) * 1977-06-20 1979-01-04 Gen Electric Heterocyclisch gekoppelte polymere von polyphenylenoxid
EP0061913A2 (de) * 1981-03-27 1982-10-06 E.I. Du Pont De Nemours And Company Herbizide Heterooxybenzene

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FR1527714A (fr) * 1966-07-01 1968-06-07 Inst Francais Du Petrole Polyéthers dérivés de la pyridine
DE1934889A1 (de) * 1969-07-10 1971-01-14 Bayer Ag Neuartige Pyridin-bis-(hydroxyarylaether) und Verfahren zu ihrer Herstellung
FR2587348B1 (fr) * 1985-09-16 1988-02-05 Mat Organ Technolog Centre Compositions d'oligomeres de polyaryloxypyridine a terminaisons phtalonitriles, leur preparation, leur utilisation dans la fabrication de reseaux de polyaryloxypyridine co-polyphtalocyanines, et les reseaux obtenus

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DE2826684A1 (de) * 1977-06-20 1979-01-04 Gen Electric Verfahren zur herstellung von heterocyclisch gekoppelten blockpolymeren von polyphenylenoxid
DE2826685A1 (de) * 1977-06-20 1979-01-04 Gen Electric Heterocyclisch gekoppelte polymere von polyphenylenoxid
EP0061913A2 (de) * 1981-03-27 1982-10-06 E.I. Du Pont De Nemours And Company Herbizide Heterooxybenzene

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130189533A1 (en) * 2010-10-14 2013-07-25 Nissan Chemical Industries, Ltd. Resist underlayer film forming composition for lithography containing polyether structure-containing resin
US9746772B2 (en) 2010-10-14 2017-08-29 Nissan Chemical Industries, Ltd. Resist underlayer film forming composition for lithography containing polyether structure-containing resin
WO2012084940A1 (en) 2010-12-23 2012-06-28 Solvay Sa Use of oligomers as compatibilizers for inorganic particles and compositions containing compatibilizer, inorganic particles and polymer

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DE3784403D1 (de) 1993-04-08
CA1272545A (en) 1990-08-07
EP0255778B1 (de) 1993-03-03
DE3784403T2 (de) 1993-09-23
KR960006408B1 (ko) 1996-05-15
KR880002913A (ko) 1988-05-12
EP0255778A1 (de) 1988-02-10

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